ICD-10-CM > S00-T88 > T20-T25 > T21 > T21.2 T21.2 Burn of second degree of trunk Non-Billable/Non-Specific Use Additional external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92) Codes T21.20Burn of second degree of trunk, unspecified siteT21.20XA..., initial encounterT21.20XD..., subsequent encounterT21.20XS..., sequelaT21.21Burn of second degree of chest wallT21.21XA..., initial encounterT21.21XD..., subsequent encounterT21.21XS..., sequelaT21.22Burn of second degree of abdominal wallT21.22XA..., initial encounterT21.22XD..., subsequent encounterT21.22XS..., sequelaT21.23Burn of second degree of upper backT21.23XA..., initial encounterT21.23XD..., subsequent encounterT21.23XS..., sequelaT21.24Burn of second degree of lower backT21.24XA..., initial encounterT21.24XD..., subsequent encounterT21.24XS..., sequelaT21.25Burn of second degree of buttockT21.25XA..., initial encounterT21.25XD..., subsequent encounterT21.25XS..., sequelaT21.26Burn of second degree of male genital regionT21.26XA..., initial encounterT21.26XD..., subsequent encounterT21.26XS..., sequelaT21.27Burn of second degree of female genital regionT21.27XA..., initial encounterT21.27XD..., subsequent encounterT21.27XS..., sequelaT21.29Burn of second degree of other site of trunkT21.29XA..., initial encounterT21.29XD..., subsequent encounterT21.29XS..., sequela